JPH01131753A - Composite floor material - Google Patents

Abstract

PURPOSE: To increase a sound insulation capability and improve a walking feeling by laminating a surface layer on the surface of a wooden-base material through a damping material onto the surface of which adhesive agents are applied without impregnating all through-holes or irregularities and also laminating a cushioning material on the underside of the wooden-base material. CONSTITUTION: A surface layer 1 is stuck laminatedly on the surface of a wooden-base material 2 through a damping material 3 having through-holes 4 or irregularities, and a cushion material 7 is stuck laminatedly on the underside of the wooden-base material 2. The wooden-base material 2 is adhered to the surface layer 1 with adhesive agents 5 and 5' which are applied so that all the through-holes 4 or irregularities of the damping material 3 are not impregnated with these agents. Thus, when a composite floor material thus formed is laid down on a floor bed 8, an impact noise acting on the floor can be insulated satisfactorily, and a walking feeling can also be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a composite flooring material that reduces floor impact noise and provides a good walking feel.

(Conventional technology) In recent years, the number of wooden floors installed in condominiums and other housing complexes has increased, but when only wooden floors are installed on concrete floors, floor impact noise is loud and living comfort is seriously compromised. This has the problem of being exposed.

(Problems to be Solved by the Invention) An object of the present invention is to provide a composite flooring material with excellent sound insulation properties.

(Means for Solving the Problems) The present invention is a composite flooring material in which a surface layer and a wooden base material are laminated via a cushioning material having through holes or unevenness, and a cushioning material is further laminated under the wooden base material. Therefore, the surface layer and the wood base material are
The present invention relates to a composite flooring material characterized in that the cushioning material is adhesively laminated with an adhesive-impregnated cushioning material provided so that the through-holes or recesses of the cushioning material are not completely impregnated.

The present invention will be explained below based on the drawings. FIG. 1 is a cross-sectional view of a composite flooring material using a cushioning material having through holes among the composite flooring materials of the present invention, in which a cushioning material 3 having through holes between a surface layer 1 and a wooden base material 2 is an adhesive. Layers 5 and 5'' are adhesively laminated, and a cushioning material 7 is adhesively laminated under the wooden base material 2. Various types of cushioning material having through-holes can be used, such as mesh material, net, lace pattern material, etc. These can also be made of 81M nonwoven fabric, or short fibers are attached to the surface by frotski processing. It may also be something that has been made. The material of the cushioning material having through-holes may be various, such as fibers, synthetic resins, rubber, sponges, etc., composites of these materials, rubbers, sponges, etc. having a core of fibers or metal inside. It's okay.

The cushioning material having through-holes according to the present invention does not need to have any unevenness in its cross section other than the through-holes, but it is preferable that the cushioning material has unevenness.For example, the cross section of the cushioning material having such unevenness is shown in FIG. . The difference in this unevenness is approximately 175~175% of the total thickness of the cushioning material.
415 is preferred. Incidentally, the cushioning material having irregularities of the present invention also includes a sheet made of a mesh material or the like with flocking by flocking.

When a cushioning material with such a cross-sectional unevenness is interposed in a composite flooring material, in response to an impact on the floor, it initially makes point contact or small area contact due to the impact source, and then gradually spreads over a wide area around the through hole. By exhibiting the behavior of contact based on area, the effect of suppressing floor impact noise can be effectively obtained.

Examples of cushioning materials having through holes are shown in FIGS. 3 to 9.

FIG. 3 shows a fiber mesh material 12, and 4 is a through hole. Figure 4 shows an am mesh material 14 on the surface of which a large number of short fibers 13 are densely adhered by frotzky processing etc. Figure 5 +i
Sponge net 15, Figure 6 shows plastic net 16 with a frotski finish on the surface, Figure 7 shows rubber net 1.
8, FIG. 8 shows a sponge lace pattern material 19, and FIG. 9 shows a nonwoven fabric 20 laminated on the lace pattern material of FIG. The thickness of the cushioning material in tIS3-4 is approximately 0.5-1.5I.
I11 is preferred, and the thickness of the cushioning material in FIGS. 5-8 is about 0.
The thickness of the cushioning material in FIG. 9 is preferably about 1.2 to 4.2 mm. Ol, especially about 1.5-2.3 mm is preferred.

In the present invention, the adhesive is applied so that the entire surface of the cushioning material having the through-holes is not impregnated with the adhesive, that is, the adhesive is applied so that all the through-holes of the cushioning material are not crushed by the adhesive. , is characterized in that the surface layer and the wood base material are adhesively laminated.

When applying the adhesive in this way, the cushioning material is
If the adhesive has permeability, such as a sponge, it is preferable to apply the adhesive in dots or lines, and if the adhesive does not have permeability, such as rubber, it may be applied in a somewhat continuous band. You can apply the adhesive in a continuous band at slight intervals, or you can apply the adhesive over the entire surface, but apply it thinly so that the entire through hole is not filled with adhesive. Methods, etc. are preferred. Therefore, the adhesive may be applied entirely or partially to the portion of the m-impact other than the through hole.

In the cushioning material having through-holes of the present invention, the through-holes preferably occupy about 40 to 80% of the area of the entire cushioning material in many cases, but of course it may be other than that.

Next, FIG. 11 shows a cross-sectional view of a composite flooring material using a cushioning material having unevenness among the composite flooring materials of the present invention.

Instead of the buffer material 3 having a through hole, a concave portion 3a and a convex portion 31 are used.
) as described in connection with FIG. 1, except that a 41-thickness 3° with a 3° angle is used. Various materials can be used as cushioning materials with unevenness, such as a structure in which one side of a sheet with through holes is shielded, a structure in which ink is printed on a base material with a screen or the like and then gelled, and a flexible sheet. Examples include a structure in which the sheet is embossed, and a structure in which the sheet is formed with corrugations on both sides.

Examples of the cushioning material having the above-mentioned unevenness are shown in FIGS. 12 to 14.
PjS12 figure is a grid-like object 3 with through holes obtained with readable ink material such as polyvinyl chloride (PVC) paste.
This cushioning material has a structure in which one side of 3 is shielded by a flexible base 34 made of soft PVC, LF terrace woven fabric, etc., and FIG. FIG. 14 shows a cushioning material that is gelled and has convex portions 35. FIG. 14 shows a cushioning material that has concavities and convexities on both sides and is constructed by folding a plastic sheet 36 in both directions. When this cushioning material is used, gaps are created not only between the surface material and the cushioning material, but also between the cushioning material and the wooden base material. In the present invention, the cushioning material may be stacked with the uneven portion facing upward or may be stacked with the uneven portion facing upward. As a result, in the cushioning material, voids are created between the surface material or the wood base material.

In addition, in the above-mentioned cushioning material, it is desirable that the contact area of the convex portion is small. The material of the cushioning material having the unevenness may be the same as the material of the cushioning material having the through holes.

In the present invention, the adhesive is applied so that all the concave portions of the cushioning material having the above-mentioned unevenness are not impregnated with the adhesive, that is, all the gaps between the surface material or the wooden base material and the concave portions of the cushioning material are not impregnated with the adhesive. In other words, the surface layer and the wood base material are adhesively laminated by applying an adhesive so that all of the gaps are not crushed by the adhesive. When applying adhesive in this way, if the cushioning material has permeability to the adhesive, such as fibers or subonno, it is preferable to apply the adhesive in dots or lines. If the adhesive does not have permeability, apply the adhesive in a continuous band to some extent and then apply the adhesive in continuous bands at slight intervals, or apply the adhesive over the entire surface, but apply it thinly. A preferred method is to prevent the entire recess from being filled with the adhesive. Therefore, the adhesive may be applied entirely or partially to the portions of the cushioning material other than the recessed portions.

In the present invention, when a cushioning material having such unevenness is interposed in a composite flooring material, in response to an impact on the floor surface, the impact source initially causes point contact or small area contact, and then gradually the bottom of the uneven portion By exhibiting contact behavior over a wide surrounding area, the effect of suppressing floor impact noise can be effectively obtained.

In the present invention, various materials can be used as the surface W11, such as decorative boards, synthetic wood, ceramics, etc., and a thickness of approximately 1 to 5III+6 is desirable.

The wood base material 2 preferably has a weight of about 5 to 10I11111, and if necessary, the effect of suppressing floor impact noise can be enhanced by providing grooves (slits) in the vertical and/or horizontal directions.

In the present invention, the thickness of the cushioning material may be any type, preferably about 0.2 to 4I#I11, more preferably about 0.2 to 4I#I11.
3-3.5 IIue, even more preferably about 0.4-2
．． 5 mm, and since the thickness of the cushioning material is thin in the present invention,
There is no problem in terms of warpage or strength, and there is no particular need to provide a beam, but of course there is no harm in providing a beam. or,
In a cushioning material with unevenness, the level difference between the unevenness is approximately 0.1 to 4.
Less than 1 is preferred.

In FIG. 1 or FIG. 11, on the back side of the wooden base material 2,
If necessary, a sheet material 6 such as a nonwoven fabric or a mesh material is attached, and a cushion material 7 is laminated on the underside of the sheet material 6. This cushioning material is preferably a corrugated foam such as rubber, polyvinyl chloride (PVC), or soft urethane, and 8 is a floor base, and 9 is a floor base and a cushion material, or a cushion material and a wood base material. It is the gap between. Other suitable cushioning materials include thick glass wool, sheets obtained by entangling and solidifying soft resin foams, polyolefin resins, fibrous extrusion melts, etc. Desirably, any cushioning material provides an excellent walking feel and soundproofing properties.

In the present invention, it is also possible to repeatedly laminate the cushioning material and the wooden base material having through holes or irregularities, and FIG. 10 shows a cross-sectional view of one example of this embodiment. In the figure, an upper cushioning material 23 having a through hole 22 under the surface material 21, and an upper wooden base material 24 under this upper cushioning material are adhesively laminated with an adhesive layer 25, 25'. The adhesive layer 25, 25' is applied so that the cushioning material 23 is not completely impregnated. Further, a lower cushioning material 26 is formed under the upper wooden base material 24. 27 is a through hole. A lower wooden base material 28 is formed under the lower cushioning material 26. An adhesive layer 29.29° is provided between the upper wooden base material 24 and the lower cushioning material 26 and between the lower cushioning material 26 and the lower wooden base material 28 so as not to impregnate the entire surface of the lower cushioning material, and these are adhesively laminated. A cushioning material 31 is attached under the lower wooden base material via a sealing material 30 if necessary. Floor base 3
A gap is formed between 2 and the cushion material. The resulting composite flooring exhibits extremely good sound insulation properties.

Incidentally, a composite flooring material repeatedly laminated in the same manner can be obtained by using the cushioning material having the unevenness in place of the cushioning materials 23 and 26 described above.

In the composite flooring material of the present invention, the flooring materials can be bonded to each other by, for example, known actual processing.
As shown in the figure, by providing a male seed 10 on one side of the wooden base material and a female seed 11 on the other side, the flooring materials can be firmly joined together.

(Effects of the Invention) In addition to providing a comfortable walking feeling, the present invention also provides excellent sound insulation by laminating a surface material on a pair of cushioning material and a wooden base material, and also provides the above-mentioned When two layers of cushioning material and wood base material are repeatedly laminated, an improvement of 3 or more is seen in the L number. As described above, the walking feeling and the impact sound resistance are dramatically reduced, making it extremely convenient for use in apartment complexes, and representing an extremely advanced level of innovation compared to known flooring materials.

In addition, as is clear from the examples described later, in the present invention, by using the cushioning material in the special method as described above,
Even though it is a thin cushioning material, its sound insulation properties are extremely good.
As a result, even though the total thickness of the flooring material is about the same as that of conventional flooring materials, it exhibits better sound insulation than expected.

(Example) Examples and comparative examples will be described below.

Example 1 2.5-thick wood decorative board and 5.5-mm-thick wood base material were flocked with short sin by flotski processing to a thickness of 0.7+s.
Adhesive was applied to the wooden decorative board and the wooden base material through the + mesh material, and the amount of adhesive was adjusted so that the entire mesh material was not impregnated with the adhesive, and these 3N sheets were laminated by pressure. Furthermore, a foamed rubber backing material having a height of 4M from the back surface of the wood substrate to the floor base was provided as a cushioning material on the back surface of the wooden base material to create a composite flooring material, and this was installed on the floor base.

Example 2 A composite flooring material was prepared in the same manner as in Example 1, except that a non-foamed rubber net with a thickness of 1.0 to 1.41 mm was used instead of the cushioning material in Example 1, and this was used as a subfloor material. It was constructed in

Example 3 A composite flooring material was created in the same manner as in Example 1, except that a P■C sponno lace pattern material with a thickness of 1.1 to 1 and 4 m @ was used instead of the cushioning material in Example 1. I installed this on the subfloor.

Example 4 A composite floor was prepared in the same manner as in Example 1, except that a sheet with a thickness of 1.8 to 2.2 mm in which a nonwoven fabric was laminated to the lace pattern material of Example 3 was used instead of the cushioning material of Example 1. I created the material and installed it on the subfloor.

Example 5 Instead of the cushioning material of Example 1, the thickness was 2.3~3. O'llll
A composite flooring material was prepared in the same manner as in Example 1, except that No. 11 sponge net was used, and this was applied to the floor base.

Example 6 A mating flooring material was prepared in the same manner as in Example 1, except that two layers of the cushioning material and the wood base material used in Example 1 were repeatedly laminated, and this was applied to the subfloor.

Comparative Example 1 A composite flooring material was prepared in the same manner as in Example 1 except that the cushioning material was not used in Example 1, and this was applied to a subfloor.

Comparative Example 2 Yuyun 1 which does not have through holes as a cushioning material in Example 1
．． A composite flooring material was prepared in the same manner as in Example 1 except that a PVC sheet with a thickness of 2+ am was used, and this was applied to the subfloor.

Comparative Example 3 A composite flooring material was prepared in the same manner as in Example 1 except that the adhesive was applied so that the entire cushioning material was impregnated with the adhesive in Example 1, and this was applied to a subfloor.

Test Example 1 The sound insulation performance of the composite flooring materials obtained in Examples 1 to 6 and Comparative Examples 1 to 3 was measured in accordance with JTS-A-1418 (method for measuring lightweight floor impact sound levels at building sites). It was measured using The results are shown in Table 1. Incidentally, the walking feeling was good for both the flooring materials of the example and the comparative example.

Table 1 Example 7 A wood decorative board with a thickness of 2.5fiI11 and a wood base material with a thickness of 5.5mm were used, the total thickness was 1.21, and the embossed cross section was 0.38.
- Apply adhesive to the wood decorative board and the wood base material through the embossed foam cushioning material with a 7-ring pattern, so that the entire gap between the decorative board and the recessed part of the cushioning material is impregnated with the adhesive. As in Example 1, the amount of adhesive was reduced to 11 g, and these three layers were laminated by pressure bonding. Furthermore, a foamed rubber backing material having a height of 4111-cm from the back surface of the wood substrate to the floor base was provided as a cushioning material on the back surface of the wooden base material to create a composite flooring material, and this was installed on the floor base.

Example 8 Instead of the cushioning material of Example 7, the total thickness was 1.5 mm and the level difference was 0.
．． A composite floor material was prepared in the same manner as in Example 7 except that a 48 am dot pattern foam sheet was used, and this was applied to the subfloor.

Example 9 Non-foamed Pv on glass nonwoven fabric instead of the cushioning material of Example 7
A composite flooring material was prepared in the same manner as in Example 7, except that a sheet of C paste was printed thickly in dots and the total thickness was 1.45 mm, and the height difference was 0.75 mm. was constructed on the subfloor.

Example 10 The same as Example 7, except that instead of the cushioning material of Example 7, a non-foamed rubber net sheet with a thickness of 1.4 m and a maximum unevenness difference of 1.3 mm was used, one side of which was covered with a vinyl film. A composite flooring material was created in the same manner as in 7, and this was installed on the subfloor.

Test Example 2 The sound insulation performance of the composite floor materials obtained in Examples 7 to 10 was measured in the same manner as Test Example 1. The results are shown in Table 2. still,
The feeling of walking was good.

Table 2

[Brief explanation of the drawing]

Figures 1 and 11 are cross-sectional views of the composite flooring material of the present invention;
The figure is a sectional view of a portion of the cushioning material used in the present invention other than the through-holes, Figures 3 to 9 are perspective views showing examples of the cushioning material having through-holes used in the present invention, and Figure 10 is a diagram showing the cushioning material and the wood base. 1 is a cross-sectional view of a composite flooring material of the present invention in which materials are repeatedly laminated. 12th to 1st
FIG. 4 is a perspective view showing an example of a cushioning material having unevenness. (Above) Applicant: Toyo Linoleum Co., Ltd. Agent
Patent Attorney 1) Iwao Mura Figure 6 Figure 8 Procedural Amendments December 9, 1986

Claims (10)

[Claims] (1) A composite flooring material in which a surface layer and a wood base material are laminated via a cushioning material having through holes or unevenness, and a cushioning material is further laminated under the wood base material, the surface layer and the wood base material are adhesively laminated with an adhesive-impregnated cushioning material applied so that all of the through holes or recesses of the cushioning material are not impregnated. (2) The composite flooring material according to claim 1, wherein the cushioning material having through holes has an uneven cross-sectional shape. (3) The composite flooring material according to claim 1, which does not require wood. (4) The composite flooring material according to claim 1, wherein the cushioning material having through holes is a mesh material, a net, or a lace pattern material. (5) The composite flooring material according to claim 4, wherein the cushioning material having through holes is a mesh material, a net, or a lace pattern material made of laminated nonwoven fabrics. (6) The composite flooring material according to claim 4, wherein the cushioning material having through-holes is a mesh material, a net, or a lace-patterned material to which short fibers are attached by frotsky processing to the surface. (7) The thickness of the cushioning material with through holes or unevenness is 0.2~
The composite flooring material according to claim 1, which has a thickness of 4 mm. (8) The thickness of the cushioning material with through holes or unevenness is 0.3~
The composite flooring material according to claim 7, which has a thickness of 3.5 mm. (9) The thickness of the cushioning material with through holes or unevenness is 0.4~
The composite flooring material according to claim 8, which has a thickness of 2.5 mm. (10) The composite flooring material according to claim 1, in which the cushioning material and the wood base material are repeatedly laminated.